KR101912065B1 - Apparatus for Constant Temperature and Humidity and method of controlling the same - Google Patents

Abstract

The present invention relates to a constant temperature and humidity apparatus capable of realizing a high quality constant temperature and humidity environment. According to the present invention, the constant temperature and humidity apparatus comprises: an indoor unit (10) including an indoor unit body (11), a filter installed at an inlet of the indoor unit body (11) to filter a foreign matter from inflow air, an evaporator (13) to absorb latent heat from the air passing through the filter (12), a humidifier (14) to supply steam to the air passing through the evaporator (13), a heater to raise the temperature of the air passing through the evaporator (13), and a blowing fan (16) to discharge the constant temperature/humidity air by the evaporator (13), the humidifier (140, and the heater (15) to an outlet (11a); an outlet unit (20) including an outdoor unit body (21) disposed outside a constant temperature/humidity space, a compressor (22) to compress thermal medium passing through the evaporator (13), a condenser (23) to condense the compressed thermal medium to radiate the latent heat, and a heat radiating fan (23) to radiate the air heated by passing through the condenser (23) to the outdoor unit body (21); and a sub constant temperature/humidity device (100) installed inside the indoor unit (10) to minimize temperature and humidity fluctuations of the discharged constant temperature/humidity air.

Description

Apparatus for Constant Temperature and Humidity and Method of Controlling the Same

TECHNICAL FIELD The present invention relates to a constant temperature and humidity apparatus, and more particularly, to a constant temperature and humidity apparatus capable of minimizing fluctuations in temperature and humidity of a constant temperature and humidity air discharged in a constant temperature and humidity environment while maintaining and maintaining a constant temperature and humidity environment.

The constant temperature and humidity device is designed to maintain the temperature and humidity inside the building constantly. It is mainly used in many fields such as computer room, precision measuring room, precision parts processing room, museum, semiconductor manufacturing site.

Such a constant temperature and humidity apparatus comprises an indoor unit for discharging constant temperature and humidity air into a constant temperature and humidity space and an outdoor unit for dissipating heat absorbed from the indoor unit to the outside of the constant temperature and humidity space; The indoor unit is equipped with an evaporator, a heater and a humidifier; And a condenser and a compressor are installed in the outdoor unit.

In the above-described constant-temperature and constant-humidity device, the process of keeping the discharged air at a constant temperature is performed by absorbing and dissipating the latent heat of the heat medium in the physical process of evaporating and compressing the heat medium passing through the refrigerant line between the indoor unit and the outdoor unit Therefore, even when the temperature is set to a specific constant temperature, a slight error occurs between the fluctuation of the temperature, that is, the temperature of the discharged air and the set constant temperature.

In addition, even if the constant temperature and humidity space is set so as to be maintained at a specific constant temperature and humidity, it is difficult to precisely control the humidifier so that the humidity becomes low during the cooling. Therefore, A slight error occurred between the humidity of the discharged air and the set humidity and humidity.

In other words, even if the constant temperature and humidity device is set to a specific temperature and humidity, the temperature and humidity of the discharged air are fluctuated. Therefore, when the device is used in a manufacturing process sensitive to temperature and humidity, Or an error has occurred in the data value obtained in the laboratory.

Patent Document: Japanese Patent Application Laid-Open No. 10-2008-0099012

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems and provides a constant temperature and humidity device capable of realizing high quality constant temperature and humidity environment by minimizing an error between a set constant temperature and humidity and a temperature and a humidity of discharged air .

According to an aspect of the present invention, there is provided a constant temperature /
A filter 12 disposed at the inlet of the indoor unit main body 11 for filtering foreign substances in the air introduced into the indoor unit main body 11 and having a discharge port 11a, An evaporator 13 for absorbing latent heat in the air passed through the filter 12 by evaporation, a humidifier 14 for supplying steam with the air passed through the evaporator 13, And a blowing fan 16 for blowing air heated and humidified by the evaporator 13, the humidifier 14 and the heater 15 to the discharge port 11a, An indoor unit (10) comprising: A compressor 22 installed in the outdoor unit main body 21 and compressing a heating medium passed through the evaporator 13; A condenser 23 for discharging latent heat while passing through the heat medium compressed by the compressor 22 and a heat dissipating fan 26 for discharging the air heated by the condenser 23 to the outdoor unit main body 21, (20); And a Peltier element 110 for minimizing temperature and humidity fluctuations of the constant temperature and humidity air installed in the indoor unit 10. The Peltier element 110, 2 sub humidifier (100) having a humidifying pipe (150) (160);
The sub-thermo-hygrostat 100 includes the Peltier element 110 disposed in the middle; A first heat exchange unit 120 and a second heat exchange unit 130 installed on both sides of the Peltier element 110; A first housing 141 coupled to one side edge of the Peltier element 110 with the first heat exchanging part 120 built therein, the first housing 141 forming a first flow path B at a front end thereof; A second housing 142 connected to the other side edge of the Peltier element 110 in a state where the second heat exchanging part 130 is embedded therein and forming a second flow path C at the front end thereof; The first humidifying pipe 150 passing through the first housing 141 and passing through the first heat exchanging unit 120 and having a plurality of first through holes 151; The second humidifying pipe 160 passing through the second housing 142 and passing through the second heat exchanging unit 130 and having a plurality of second through holes 161; A combined housing D in which a front end of the first housing 141 and a front end of the second housing 142 are coupled and a mixing space D in which the first flow path B and the second flow path C meet is formed, 143); And a sensor unit 170 installed in the merging housing 143 and composed of a temperature sensor and a humidity sensor for measuring the temperature and humidity of the mixed air in the mixing space D .

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The first sub-blowing fan 144 and the first heat exchanging unit 120 are installed in the first housing 141 and installed at the rear end of the first heat exchanging unit 120, Further comprising a shutter-shaped first opening / closing part (145) installed at a front end of the first flow path (B) to stop the air flow of the first flow path (B) A second sub air blowing fan 146 installed at a rear end of the second heat exchanging unit 130 for blowing air and a second sub air blowing fan 146 installed at a front end of the second heat exchanging unit 130, And a shutter-shaped second opening and closing part 147 for stopping the air flow of the second flow path C. [

In the present invention, the first heat exchanging unit 120 includes a first heat transfer plate 121 which is bonded to one surface of the Peltier element 110 and a second heat transfer plate 121 which is formed in a pin shape protruding outward from the first heat transfer plate 121 A plurality of first heat transfer fins (122) having a first heat transfer surface The second heat exchanger 130 includes a second heat transfer plate 131 attached to the other surface of the Peltier element 110 and a plurality of second heat transfer plates 131 protruding from the second heat transfer plate 131 And includes a heat transfer fin (132).

The first heat transfer plate 121 and the first heat transfer fin 122 in the space between the first heat transfer fins 122 of the first heat exchange unit 120 And a plurality of first through holes 151 are formed on the upper surface of the first heat exchanging unit 120. The first through holes 151 are formed in the upper surface of the first heat exchanging unit 120, The second humidifying pipe 160 is installed in close contact with the second heat transfer plate 131 and the second heat transfer fin 132 in a space between the second heat transfer fins 132 of the second heat exchanging unit 130 A width of the second heat exchanging part 130 is increased, and a plurality of second through holes 161 are formed on the upper surface of the second heat exchanging part 130.

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According to the present invention, a constant temperature and humidity space can be realized by generating the constant temperature and humidity air using the indoor unit 10 and the outdoor unit 20. In this process, the sub temperature and humidity unit 100 is operated, The error between the humidity and the temperature and humidity of the discharged air can be minimized. Accordingly, it is possible to realize a high-quality constant temperature and humidity environment, thereby improving the reliability of a product manufactured under a constant temperature and humidity environment, or minimizing a data error value in a laboratory, thereby improving the reliability of the experimental results. have.

1 is a view showing the construction of a constant temperature and humidity device according to the present invention,
Fig. 2 is a view of the indoor unit of Fig. 1,
FIG. 3 is an excerpt of a sub-thermo-hygrostat provided in the indoor unit of FIG. 1,
4 is a sectional view taken along the line IV-IV 'in Fig. 3,
FIG. 5 is a flowchart for explaining a control method of the sub-thermo-hygrostat of FIG.

Hereinafter, a constant temperature and humidity device according to the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a view showing the construction of a constant temperature and humidity device according to the present invention, FIG. 2 is a view of the indoor unit of FIG. 1, FIG. 3 is an excerpt of a sub- 4 is a cross-sectional view taken along the line IV-IV 'in Fig.

The indoor unit 10 includes an indoor unit 10 for discharging the constant temperature and humidity air into a constant temperature and humidity space, an outdoor unit 20 for radiating heat absorbed by the indoor unit 10 to the outside of the constant temperature and humidity space, And a sub-thermo-hygrostat (100) for minimizing the temperature and humidity fluctuations of the constant temperature and humidity air that is installed inside and discharged.

The indoor unit 10 includes an indoor unit main body 11 disposed inside the constant temperature and humidity space, a filter 12 for filtering foreign substances in the air introduced into the inlet of the indoor unit main body 11, A heater 14 for raising the temperature of the air passed through the evaporator 13; a heater 14 for heating the air passing through the evaporator 13; an evaporator 13 for absorbing latent heat in the air passing through the evaporator 13; An air blowing fan 16 for blowing air conditioned and humidified by the evaporator 13, the humidifier 14 and the heater 15 to the discharge port 11a of the indoor unit body 11, And a drain line (not shown) for draining to the outside.

The humidifier 14 is connected to a water supply pipe 14a flowing from the outside, and is supplied with water for maintaining air humidity and humidity.

The outdoor unit (20) includes an outdoor unit main body (21) disposed outside the constant temperature and humidity space, a compressor (22) for compressing the heating medium via the evaporator (13) A condenser 23 for condensing the heat medium compressed by the compressor 22 to discharge latent heat and a heat dissipating fan 26 for discharging the heated air to the outdoor unit main body 21 via the condenser 23.

The sub thermo-hygrostat 100 is installed in the indoor unit 10 and minimizes the fluctuation of the temperature and humidity of the constant temperature and humidity air discharged to the discharge port 11a. A first heat exchanging part 120 and a second heat exchanging part 130 installed on both sides of the Peltier element 110 and a second heat exchanging part 130 surrounding the first heat exchanging part 120, A first housing 141 which is provided at a front edge of the element 110 and forms a first flow path B at the front end thereof and a second housing 141 which surrounds the second heat exchanging part 130 and is engaged with the other surface of the Peltier element 110 A second housing 142 formed at a front end thereof to form a second flow path C and a first humidifying pipe 150 passing through the first housing 141 and passing through the interior of the first heat exchanging unit 120, A second humidifying pipe 160 passing through the second housing 142 and passing through the inside of the second heat exchanging unit 130; A combined housing housing 143 coupled to the front end of the housing 142 and having a first flow path B and a second flow path C to form a mixing space D therein; And a sensor unit 170 installed in the sensor unit.

 The Peltier element 110 is a module in the form of a module in which N and P type thermoelectric semiconductors are electrically connected in series and thermally connected in parallel. When a current is applied to both ends of the element, heat is absorbed And has a thermoelectric effect for releasing heat on the other surface at a high temperature. The device is arranged vertically as shown in FIG. 4, and a low-temperature or high-temperature surface is imposed on both the left and right sides.

One side of the Peltier element 110 in the direction of the first heat exchanging part 120 is realized at a low temperature and the other side of the Peltier element 110 in the direction of the second heat exchanging part 130 The other surface may be implemented at a high temperature. Of course, one side and the other side of the Peltier element 110 can change between low temperature and high temperature by changing the direction of the current applied under the control of the control section.

4, the first heat exchanging part 120 includes a first heat transfer plate 121 formed of a metal material and joined to one surface of the Peltier element 110, and a second heat transfer plate 121 formed on the first heat transfer plate 121, And a plurality of first heat transfer fins 122 having projecting pin shapes.

4, the second heat exchanging part 130 includes a second heat transfer plate 131 formed of a metal material and corresponding to the first heat exchanging part 120 and joined to the other surface of the Peltier element 110, And a plurality of second heat transfer fins 132 having a pin shape protruding outward from the two heat transfer plates 131.

The first, second and third housings 141, 142 and 143 are integrally formed to form a single housing. 3 and 4, the housing includes a first housing 141 that surrounds the first heat exchanging part 120 and is engaged with one edge of the Peltier element 110 to form a first flow path B, A second housing 142 surrounding the second heat exchanging part 130 and engaging with the rim of the other surface of the Peltier element 110 to form a second flow path C, And a combined housing 143 coupled with the first flow path 142 and the first flow path B and the second flow path C to form a mixing space D therein.

A first sub-blowing fan 144 for blowing air is provided at a rear end of the first housing 141 with respect to the first heat exchanging unit 120, and a first sub- A shutter-shaped first opening and closing part 145 for stopping air flow of the flow path B is provided.

The second housing 142 has a shape similar to that of the first housing 141 and has a shape corresponding to the first housing 141 such as a tube having a rectangular cross section and the second heat exchanging part 130 is a reference A second sub air blowing fan 146 for blowing air to the rear end is provided and a second opening and closing part 147 of a shutter shape for stopping the air flow of the second flow path C is provided at the front end.

The combined housing 143 is formed by combining the front end of the first housing 141 and the front end of the second housing 142 to form a mixing space D having a circular cross section and a sensor (170) is installed. The combining housing 143 can mix the air of the first flow path B and the air of the second flow path C in the internal mixing space D under the control of the control unit and exhaust the mixed air to the outside.

3 and 4, the first humidifying pipe 150 is in the form of a pipe connected to the water supply pipe 14a of the humidifier 14, and passes through the first housing 141, And is installed so as to pass through the inside of the heat exchange unit 120. The first humidifying pipe 150 is installed in close contact with the first heat transfer plate 121 and the first heat transfer fin 122 in a space between the first heat transfer fins 122 of the first heat exchanging unit 120, 1 heat exchanging part 120, and a plurality of first through holes 151 are formed on the upper surface. According to this structure, the water supplied from the outside is vaporized by the temperature of the first heat exchanging part 120 and discharged in the form of water vapor through the first through hole 151. The water vapor discharged from the first through hole 151 flows through the first It can be mixed with the air of the flow path B to increase the humidity.

3 and 4, the second humidifying pipe 160 is in the form of a pipe connected to the water supply pipe 14a of the humidifier 41, and passes through the second housing 142, And is installed in the heat exchanging part (130). The second humidifying pipe 160 is installed in close contact with the second heat transfer plate 131 and the second heat transfer fin 132 in the space between the second heat transfer fins 132 of the second heat exchanging unit 130, The second heat exchanging part 130 has a larger width and a plurality of second through holes 161 are formed on the upper surface. According to this structure, the second humidifying pipe 160 performs a dehumidifying function as opposed to the humidifying function of the first humidifying pipe 150, and the condensation water vapor of the second channel C through the second through- So that the humidity can be lowered.

Of course, the first humidifying pipe (150) and the second humidifying pipe (160) selectively perform the function of humidifying or dehumidifying according to the heat generation or the heat absorption operation of the first heat exchanging unit (120) and the second heat exchanging unit can do.

The sub-thermo-hygrostat 100 having the above-described structure is configured such that the thermoelectric effect of the Peltier element 110 is used to heat the high-temperature heating atmosphere in the first heat exchanging part 120 and the second heat exchanging part 130, respectively, A low-temperature cooling atmosphere by endothermic reaction can be realized, and air having such an atmosphere can be mixed in the mixing space D and discharged easily into air having a predetermined temperature and humidity. Accordingly, the constant temperature and humidity device according to the present invention can minimize temperature and humidity fluctuations of the discharged constant temperature and humidity air compared to the conventional constant temperature and constant humidity device.

5 is a flowchart illustrating a method of controlling the sub-thermo-hygrostat of FIG.

First, the control unit (not shown) of the constant temperature and humidity device drives the subcategory thermostatic / hygrostat 100 (S310).

That is, the control unit drives the Peltier element 110 to discharge the air of constant temperature and humidity having the set temperature and humidity according to the user's command, and operates the first sub-blowing fan 144 and the second sub- . The first humidifying pipe 150 or the second humidifying pipe 160 is selectively driven to perform humidification or dehumidification and then the operation of the first opening and closing unit 145 and the second opening and closing unit 147 is controlled, The air passing through the flow path B and the air passing through the second flow path C can be mixed in the mixing space D and discharged to the outside.

Specifically, the amount of heat absorbed or generated Q by the Peltier effect in the Peltier element 110 is proportional to the applied current I as shown in the following equation (1).

Here,? Corresponds to the equivalent voltage for cooling or heating at the n-type and p-type semiconductor junctions as Peltier coefficients, and the Peltier coefficient is expressed by Equation (2) 120) and the second heat exchanging part (130).

(α: Seebeck coefficient [V / K ], T: temperature difference between the first heat exchanging part 120 and the second heat exchanging part 130)

By adjusting the applied current I applied to the Peltier element 110 and adjusting the temperature difference between the first heat exchanging part 120 and the second heat exchanging part 130, the first heat exchanging part 120 and the second The degree of heat absorption or heat generated in the heat exchanging unit 130 can be controlled. At this time, depending on the current direction of the applied current I, endothermic or exothermic heat may be generated in the direction of the first heat exchange unit 120, and heat or endotherm may occur in the direction of the second heat exchange unit 130.

The control unit controls the flow of the air passing through the first flow path B and the air passing through the second flow path C in the mixing space D through the sensor unit 170 Temperature and humidity are detected (S320).

Then, the control unit determines whether the temperature and humidity of the mixed air detected through the sensor unit 170 are in the constant temperature and humidity conditions (S330).

When the temperature and the humidity of the mixed air are different from each other, the control unit controls the application current I of the Peltier element 110, the first sub-blowing fan 144, The second sub-blowing fan 146, the first humidifying pipe 150 or the second humidifying pipe 160 to control the temperature or humidity of the mixed air (S340).

For example, when a difference from the set temperature is detected, the control unit adjusts the applied current I of the Peltier element 110 so that the heat or the heat absorbed in each of the first heat exchanging unit 120 and the second heat exchanging unit 130 So that the temperature of the air passing through the first flow path B can be increased or the temperature of the air passing through the second flow path C can be lowered and mixed in the mixing space D and discharged to the outside.

At this time, the control unit controls the operation of each of the first sub blowing fan 144, the second sub blowing fan 146, the first opening and closing unit 145, and the second opening and closing unit 147, The degree of mixing can be controlled by controlling the flow of air or the air passing through the second flow path (C) to about the flow rate. Accordingly, the flow rate of the air passing through the first flow path B and the air passing through the second flow path C in the mixing space D can be controlled and discharged to the air having the predetermined temperature.

Alternatively, if a difference between the set humidity and the set humidity is required and humidification is required, the control unit may vaporize the water supplied to the first humidifying pipe 150 installed in the first heat exchanging unit 120 where heat is generated, ) In the form of water vapor. Accordingly, the water vapor discharged from the through holes of the first humidifying pipe 150 can be mixed with the air of the first flow path B to increase the humidity.

On the other hand, when dehumidification is required, the control unit controls the second humidifying pipe 160 installed in the second heat exchanging unit 130 where the cooling according to the heat absorption is performed, It is possible to lower the humidity of the air flowing in the second flow path C by sucking the condensed water vapor of the flow path C and thereby to reduce the humidity of the air mixed in the mixing space D. [

With respect to the air mixed in the mixing space D through the above process, the control unit again uses the sensor unit 170 to determine whether the temperature and the humidity of the mixed air are in a constant temperature and humidity state having a set temperature and humidity (S350 ).

If the temperature and humidity of the mixed air differ from the set temperature and the humidity, the control unit repeats the step of adjusting the temperature or humidity (S340) again to determine the temperature or humidity of the mixed air .

As described above, according to the present invention, the thermo-hygrostat may generate a constant temperature and humidity space by using the indoor unit 10 and the outdoor unit 20, and in this process, the sub thermo-hygrostat 100 is operated The error between the constant temperature of the set air and the humidity and humidity of the air to be discharged can be minimized. Accordingly, it is possible to realize a high-quality constant temperature and humidity environment, thereby improving the reliability of a product manufactured under a constant temperature and humidity environment, or minimizing a data error value in a laboratory, thereby improving reliability of an experimental result.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10 ... indoor unit 11 ... indoor unit body
11a ... Outlet 12 ... Filter
13 ... evaporator 14 ... humidifier
14a ... water supply pipe 15 ... heater
16 ... blowing fan 20 ... outdoor unit
21 ... outdoor unit body 22 ... compressor
23 ... condenser 26 ... heat-dissipating fan
100 ... Sub-thermo-hygrostat 110 ... Peltier element
120 ... first heat exchanging part 121 ... first heat transfer plate
122 ... first heat transferring pin 130 ... second heat exchanging part
131 ... second heat transfer plate 132 ... second heat transfer pin
141 ... first housing 142 ... housing
143 ... coalesced housing 144 ... first sub-blower fan
145 ... First opening and closing part 146 .. Second sub-blowing fan
147 ... second opening and closing part 150 ... first humidifying pipe
151 ... first through hole 160 ... second humidifying pipe
161 ... second through hole 170 ... sensor part

Claims (8)

A filter 12 disposed at the inlet of the indoor unit main body 11 for filtering foreign substances in the air introduced into the indoor unit main body 11 and having a discharge port 11a, An evaporator 13 for absorbing latent heat in the air passed through the filter 12 by evaporation, a humidifier 14 for supplying steam with the air passed through the evaporator 13, And a blowing fan 16 for blowing air heated and humidified by the evaporator 13, the humidifier 14 and the heater 15 to the discharge port 11a, An indoor unit (10) comprising:
A compressor 22 installed in the outdoor unit main body 21 and compressing a heating medium passed through the evaporator 13; A condenser 23 for discharging latent heat while passing through the heat medium compressed by the compressor 22 and a heat dissipating fan 26 for discharging the air heated by the condenser 23 to the outdoor unit main body 21, (20); And
The Peltier element 110 and the second and third Peltier element 110 and the second and third Peltier element 110 and the second and third Peltier element 110, And a sub-thermo-hygrostat (100) having a humidifying tube (150) (160);
The sub-thermo-hygrostat (100)
A Peltier element (110) disposed in the middle;
A first heat exchange unit 120 and a second heat exchange unit 130 installed on both sides of the Peltier element 110;
A first housing 141 coupled to one side edge of the Peltier element 110 with the first heat exchanging part 120 built therein, the first housing 141 forming a first flow path B at a front end thereof;
A second housing 142 connected to the other side edge of the Peltier element 110 in a state where the second heat exchanging part 130 is embedded therein and forming a second flow path C at the front end thereof;
The first humidifying pipe 150 passing through the first housing 141 and passing through the first heat exchanging unit 120 and having a plurality of first through holes 151;
The second humidifying pipe 160 passing through the second housing 142 and passing through the second heat exchanging unit 130 and having a plurality of second through holes 161;
A combined housing D in which a front end of the first housing 141 and a front end of the second housing 142 are coupled and a mixing space D in which the first flow path B and the second flow path C meet is formed, 143);
And a sensor unit 170 installed in the merging housing 143 and composed of a temperature sensor and a humidity sensor for measuring the temperature and humidity of the mixed air in the mixing space D Constant temperature and humidity device. delete The method according to claim 1,
A first sub blowing fan 144 installed at a rear end of the first heat exchanging unit 120 for blowing air and a second sub blowing fan 144 installed at a front end of the first heat exchanging unit 120, Further comprising a shutter-shaped first opening / closing part (145) for stopping air flow of the first flow path (B);
A second sub air blowing fan 146 installed at a rear end of the second heat exchanging unit 130 for blowing air and a second sub air blowing fan 146 installed at a front end of the second heat exchanging unit 130, Further comprising a shutter-shaped second opening / closing portion (147) for stopping air flow of the second flow path (C). The method according to claim 1,
The first heat exchanging part 120 includes a first heat transfer plate 121 attached to one surface of the Peltier element 110 and a plurality of first heat transfer plates 121 protruding outward from the first heat transfer plate 121, A heat transfer pin (122);
The second heat exchanger 130 includes a second heat transfer plate 131 attached to the other surface of the Peltier element 110 and a plurality of second heat transfer plates 131 protruding from the second heat transfer plate 131 And a heat transfer fin (132). 5. The method of claim 4,
The first humidifying pipe 150 is closely adhered to the first heat transfer plate 121 and the first heat transfer fin 122 in a space between the first humidifying pipe 150 and the first heat transfer fin 122 of the first heat exchanging unit 120, And a plurality of the first through holes 151 are formed on the upper surface of the first heat exchanging unit 120,
The second humidifying pipe 160 is arranged to be in close contact with the second heat transfer plate 131 and the second heat transfer fin 132 in a space between the second humidification pipe 160 and the second heat transfer fin 132 of the second heat exchanging unit 130 And a plurality of second through holes (161) are formed in an upper surface of the second heat exchanging unit (130), wherein the second through holes (161) are formed in the second heat exchanging unit (130). delete delete delete

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